Northwestern Preparatory School ended in 1995.
Northwestern Preparatory School was created in 1865.
Brooklyn Preparatory School ended in 1972.
Assumption Preparatory School ended in 1970.
Savio Preparatory High School ended in 2007.
Martin Luther Preparatory School ended in 1995.
Hill Brow Preparatory School for Boys ended in 1968.
Northwestern University Dental School ended in 2001.
John F. Kennedy Preparatory High School ended in 1982.
Meadowbrook Preparatory School was created in 1960.
Oakbrook Preparatory School was created in 1992.
Emerson Preparatory School was created in 1852.
Luther Preparatory School was created in 1995.